Living under capitalism doesn't somehow make you a hypocrite when you're against it.
I don't disagree with this, I often get the inverse argument: "You claim to be a libertarian, yet you drive on government roads. Curious."
And I have never appreciated the "don't criticize [thing] if you don't have a better solution" meta. Identifying problems is a prerequisite to finding solutions, and even if no solution exists the criticisms can still be valid and useful.
In this case, the criticisms are (imo) not valid. They either apply in general, and therefore are not unique criticisms of capitalism in comparison to other systems, or they misidentify the cause of the issue, as in: 'authoritarian government turns out to be bad instead of good (Pikachu face); it must be capitalism's fault somehow'.